Short answer: there is no standard topical dose, and you should not wait for one. Topicals are not dosed like edibles, where a tidy 10 mg square is measured out for you. Start with a pea-sized dab on a small patch of skin, wait 20 to 30 minutes, and add another layer if nothing changes. Most people find a working amount within a few tries.
best cannabis topicals for pain relief 2025
Why topicals do not follow edible math
THC and CBD cross intact skin slowly. A cream rubbed into a sore knee mostly acts where it lands, so very little reaches your bloodstream. That is why a 500 mg THC lotion will not hit like a 500 mg edible, and why ordinary topicals rarely get you high. Beginners tend to worry about this at the counter. It is the single most useful thing to understand before you buy.
what are cannabis topicals used for
Read the label before you squeeze any out
Topical labels are inconsistent, and that is where most first-time confusion starts.
- Total mg per container. A 300 mg CBD balm means 300 mg in the whole jar, not per scoop.
- Mg per gram or per pump. Some brands list this. When they do, use it.
- Container size. One ounce is about 28 grams. A 1 oz lotion with 100 mg THC comes out to roughly 3.5 mg per gram of product.
That last figure is worth keeping in your head. A pea-sized squeeze weighs about a third of a gram, so one application from that example works out to about 1 mg of THC on your skin.
best cannabis topicals for pain relief 2025
A starting routine that works for most people
- Patch test. Rub a small amount on your inner forearm and wait a day to check for redness or itching.
- Apply a pea-sized amount to the area that bothers you.
- Wait 20 to 30 minutes. Topicals build slowly, and a second layer often does more than a heavier first one.
- Reapply if you feel nothing, and stop when you get relief.
- Wash your hands after, and keep the product away from eyes, lips, and any broken skin.
Write down the brand, the total mg, and how much you used. Store labels vary enough that notes are the only reliable way to repeat a good result.
Products that are the exception: transdermal patches
Patches are not creams. A transdermal patch is built to move cannabinoids through the skin and into circulation, so it can produce intoxicating effects and last for hours. Treat patch dosing like edible dosing: start with the lowest strength, follow the package directions, and do not stack it with edibles or drinks on your first try. Covering a topical with plastic wrap or a tight bandage also increases absorption, so skip that trick unless a clinician told you otherwise.
What to ask at the counter
- Is this labeled per container or per gram?
- Is it a topical or a transdermal product?
- What do other customers your size and experience level usually start with?
- Does it contain other active ingredients such as menthol, arnica, or lidocaine?
If you apply too much
Wipe or wash it off with soap and warm water. Expect possible redness, warmth, or tingling at the site, which usually fades on its own. If a rash spreads, blisters, or you feel dizzy, stop using the product and talk to a pharmacist or clinician.